I didn't do this for EVERY letter, but the first few AtoZ "expansions" had working booster packs of 15 cards, sorted like so: 11 commons (of 112 possibilities), 3 uncommons (of 117 possibilities) and 1 rare (of 107 possibilities). Which means that every time you refresh this page, you will get a different distribution of cards! Makes a nice palate cleanse before heading into the Encyclopedia's C's. Note that Enhanced By Inferno's Light would have been 5 special packs with set card lists, and B's Broken Links would have come in a 40-page box, so those cards aren't in the booster.
A Data card! THE ENTRIES: [21] Calloway, Maddy (no card required) [22] Calogan dog [23] Cambra system [24] Cambridge University [25] camellia NOTES: [21] Already exists as Calloway in the Basic Set. [22] If the Dog reports on a planet surface (with a personnel, for example), it remains Neutral. Source: Referenced in "Initiations" and "Alliances" [23] Downloadable: Temporal Rift, Temporal Vortex, Temporal Narcosis, etc. Source: TNG's "Firstborn" [24] Lucasian Chair is a card in AtoZ (the L's). Source: "All Good Things..." [25] When a dilemma is uncovered and you are missing, say, Geology, you can download one Geologist to that location. Meeting the requirement, you may now pass the dilemma. Source: "Sub Rosa" Next up: A Lwaxana love interest! (I know, I know, doesn't narrow it down.) Cards: Calogan Dog, Learn Time Travel Method, Professor Data, An Omen Draped in Flowers